Evidence map›Paper›PMID 23065335›Full record

ReviewPhotosynthesis research2012

Experimental in vivo measurements of light emission in plants: a perspective dedicated to David Walker.

Hazem M Kalaji, Vasilij Goltsev, Karolina Bosa, Suleyman I Allakhverdiev, Reto J Strasser, Govindjee

Abstract readHistorical ArticleReview
PubMed Publisher
In one paragraph

Review in Photosynthesis research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
6.2field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

48 citing papers in PubMed, 165 citations in OpenAlex.

  1. Article
  2. Article
  3. Age-Specific Physiological Adjustments ofPlants (Basel, Switzerland) · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Leaves to Measure Light Intensity.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Revelations on photosystem II, thermoluminescence, and artificial photosynthesis: a retrospective of Govindjee from fundamentals to applications.Physiology and molecular biology of plants : an international journal of functional plant biology · 2023
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Femtosecond visible transient absorption spectroscopy of chlorophyll-Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 5 institutions in 7 countries.

Hazem M KalajiDepartment of Plant Physiology, Faculty of Agriculture and Biology, Warsaw University of Life Sciences SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland. hazem@kalaji.pl
Vasilij Goltsev
Karolina Bosa
Suleyman I Allakhverdiev
Reto J Strasser
Govindjee
Warsaw University of Life Sciences · PLSofia University "St. Kliment Ohridski" · BGTimiryazev Institute of Plant Physiology · RUUniversity of Geneva · CHUniversity of Illinois Urbana-Champaign · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This review is dedicated to David Walker (1928-2012), a pioneer in the field of photosynthesis and chlorophyll fluorescence. We begin this review by presenting the history of light emission studies, from the ancient times. Light emission from plants is of several kinds: prompt fluorescence (PF), delayed fluorescence (DF), thermoluminescence, and phosphorescence. In this article, we focus on PF and DF. Chlorophyll a fluorescence measurements have been used for more than 80 years to study photosynthesis, particularly photosystem II (PSII) since 1961. This technique has become a regular trusted probe in agricultural and biological research. Many measured and calculated parameters are good biomarkers or indicators of plant tolerance to different abiotic and biotic stressors. This would never have been possible without the rapid development of new fluorometers. To date, most of these instruments are based mainly on two different operational principles for measuring variable chlorophyll a fluorescence: (1) a PF signal produced following a pulse-amplitude-modulated excitation and (2) a PF signal emitted during a strong continuous actinic excitation. In addition to fluorometers, other instruments have been developed to measure additional signals, such as DF, originating from PSII, and light-induced absorbance changes due to the photooxidation of P700, from PSI, measured as the absorption decrease (photobleaching) at about 705 nm, or increase at 820 nm. In this review, the technical and theoretical basis of newly developed instruments, allowing for simultaneous measurement of the PF and the DF as well as other parameters is discussed. Special emphasis has been given to a description of comparative measurements on PF and DF. However, DF has been discussed in greater details, since it is much less used and less known than PF, but has a great potential to provide useful qualitative new information on the back reactions of PSII electron transfer. A review concerning the history of fluorometers is also presented.

Indexed as

FluorescenceLightChlorophyllChlorophyll AFluorometryHistory, 19th CenturyHistory, 20th CenturyHistory, 21st CenturyPhotosynthesisPhotosystem II Protein ComplexChlorophyllChlorophyll APhotosystem II Protein Complex

Identifiers

PMID23065335
OpenAlexW2020777756

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.